Class 250/295 - With variable beam shifting field means

Subclass of Class 250 - Radiant energy
Definition: Subject matter having, in addition to the ion selecting
No. of patents: 26
Last issue date: 11/29/2011

Number	Title	Issue Date
8067731	Chemical detection method and system A system and method for detecting an analyte of interest in a sample is provided. The method includes passing a set of ions obtained from the sample through an ion mobility spectrometer to filter out ions that are not ions of interest and to generate an ion mobility...	11/29/2011
7714284	Methods and apparatus for enhanced sample identification based on combined analytical techniques The invention relates generally to ion mobility based systems, methods and devices for analyzing samples and, more particularly, to sample detection using multiple detection and analytical techniques in combination. ...	05/11/2010
7388196	Hyperbolic horn helical mass spectrometer An improved rotating electric field ion mass spectrometer (REFIMS) provides for a smooth transition of the input ion beam from zero rotation to the desired level of field rotation. The REFIMS grid shape is changed from a fixed-diameter tunnel to that of a horn. The ...	06/17/2008
7378651	High field asymmetric waveform ion mobility spectrometer FAIMS Disclosed is an apparatus for separating ions including a plurality of first electrode portions, each first electrode portion of the plurality of first electrode portions having a first length and an outer surface that is at least partially curved in a direction tra...	05/27/2008
7348555	Apparatus and method for irradiating electron beam An electron beam irradiation apparatus includes a turn-transfer mechanism; a turn irradiation chamber; an electron beam irradiation section; a replacement room configured to bring a target into and out of the turn irradiation chamber; an outer irradiation target hol...	03/25/2008
7237400	Highly-efficient freezing apparatus and highly-efficient freezing method An object accommodated in an internal space of a freezer is quickly cooled to a predetermined temperature with preventing water from freezing while an oscillating electric field of, preferably, a variable frequency in the range of 50 Hz to 5 MHz and/or a magnetic fi...	07/03/2007
7115861	Spectrograph time of flight system for low energy neutral particles A mass spectrometer is provided for identifying mass and velocity distributions in a continuous ion beam is configured with a circular dispersive system creating a rotating electromagnetic field, which is capable of deflecting the ion beam from an initial direction,...	10/03/2006
7057167	Mass analyzer allowing parallel processing one or more analytes A method for filtering ions having a selected mass-to-charge ratio is set forth. In accordance with the method, one or more ions are injected into ion inlets of first and second ion selection chambers in a generally concurrent manner. The first and second ion select...	06/06/2006
7038201	Method and apparatus for determining electrical contact wear A fluorescent trace material is provided within at least a portion of an electrical contact or interrupter assembly component, or a cavity defined therein. At least a portion of the fluorescent trace material is exposed or released from the electrical contact or int...	05/02/2006
7019314	Systems and methods for ion beam focusing Systems and methods are provided for focusing a scanned ion beam in an ion implanter. A beam focusing system is provided, comprising first and second magnets providing corresponding magnetic fields that cooperatively provide a magnetic focusing field having a time-v...	03/28/2006
6906321	Time-of-flight mass spectrometer In a TOF-MS according to the present invention, ions fly a round orbit or a reciprocal path once or more than once to be separated by their mass to charge ratios before they are detected by a detector, The detector is movable at least in two positions, where the eff...	06/14/2005
6903332	Pulsers for time-of-flight mass spectrometers with orthogonal ion injection The invention relates to the construction and operation of a slit diaphragm pulser for a time-of-flight mass spectrometer with orthogonal injection of the ions to be examined. The invention includes switching three diaphragm potentials during a transition from a fil...	06/07/2005
6791077	Mass analyzer allowing parallel processing one or more analytes An improved mass analyzer capable of parallel processing one or more analytes is set fourth. The mass analyzer comprises a mass filter unit having a plurality of ion selection chambers disposed in parallel with one another. Each of the plurality of ion selection cha...	09/14/2004
6777670	Mass analyzer capable of parallel processing one or more analytes An improved mass analyzer capable of parallel processing one or more analytes is set forth. The mass analyzer comprises a mass filter unit having a plurality of ion selection chambers disposed in parallel with one another. Each of the plurality of ion selection cham...	08/17/2004
6646252	Multi-anode detector with increased dynamic range for time-of-flight mass spectrometers with counting data acquisition A new detection scheme for time-of-flight mass spectrometers is disclosed. This detection scheme allows extending the dynamic range of spectrometers operating with a counting, technique (TDC). The extended dynamic range is achieved by constructing a multi...	11/11/2003
6573110	Combinatorial chemistry system and method of use A combinatorial chemistry system allows for the dual processing of different molecules coated on a library of beads. The system includes beads coated with different molecules on each bead, a bead holder, screening equipment and characterization equipment....	06/03/2003
6542231	Fiber-coupled liquid sample analyzer with liquid flow cell A liquid sample analyzer with a flow-through liquid waveguide cell is described. The light source is fiber coupled to a liquid waveguide or light pipe. The light pipe can be remotely located and fiber coupled to the spectrometer so that the light source i...	04/01/2003
5726448	Rotating field mass and velocity analyzer A rotating field mass and velocity analyzer having a cell with four walls, time dependent RF potentials that are applied to each wall, and a detector. The time dependent RF potentials create an RF field in the cell which effectively rotates within the cel...	03/10/1998
5552599	Mass spectrometer having an ICP source A mass spectrometer includes an inductive coupled plasma source whose flame is near ground potential, an interface, a flight tube, and an analyzer that includes magnetic and electric sectors, and an ion detector, which detector is operated at high voltage...	09/03/1996
5159194	Method and apparatus for mass spectrometry A method of mass spectrometry and a mass spectrometer for the analysis of a sample, the mass spectrometer comprising means for producing ions from the sample and a magnetic sector for analyzing the ions, wherein the magnetic field of the magnetic sector i...	10/27/1992
5091645	Selectable-resolution charged-particle beam analyzers A method of selecting the resolution of a charged-particle energy or momentum analyzer wherein an analyzing field disperses the particles in an analyzing plane. An electrostatic field generator is adjusted to cause the dispersed particles leaving the fiel...	02/25/1992
4672204	Mass spectrometers Mass spectrometer having an ion source, acceleration means able to impart to the ions an energy essentially dependent on their electric charge, means for producing in a sector a magnetic field orthogonal to the plane of the trajectory of the ions in order...	06/09/1987
4645928	Sweeping method for superimposed-field mass spectrometer Detection of unknown daughter ions using a mass spectrometer in which two mass spectrometric units are coupled together. The spectrometric unit in the front stage has either an electric field or superimposed fields. The spectrometric unit in the rear stag...	02/24/1987
4588889	Sweeping process for mass spectrometer having superimposed fields A process of obtaining spectra of daughter ions which are produced by collision of sample ions with neutral molecules for dissociating the sample ions in a collision chamber disposed in an ion path to thereby provide a structural analysis of organic compo...	05/13/1986
4221964	Control system for mass spectrometer An RF control system suitable for use in a mass spectrometer of the type having an ionization chamber, a mass filter and an ion detector. A constant frequency RF voltage is applied to the filter. The magnitude of the RF signal is varied in response to a D...	09/09/1980
4054796	Mass spectrometer with superimposed electric and magnetic fields A mass spectrometer comprising superimposed electric and magnetic fields arranged substantially at right angles. The central orbit of the ion beam produced by an ion source is located on an equipotential surface in the electric field. The ion beam is acce...	10/18/1977

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Class 250/295 - With variable beam shifting field means